Ceratothoa

{{Automatic taxobox

| image = Ceratothoa (10.7717-peerj.9181) Figure 4.png

| taxon = Ceratothoa

| authority = Dana, 1852

| synonyms = * Codonophilus Haswell, 1881

Cteatessa Schioedte & Meinert, 1883
Meinertia Stebbing, 1893
Rhexana Schioedte & Meinert, 1883
Rhexanella Stebbing, 1911

| synonyms_ref =

| subdivision_ranks = Species

| subdivision = 26 species (see text)

}}

Ceratothoa is a genus of isopod ectoparasites of teleost fish,{{cite journal |last1=Horton |first1=Tammy |title=Ceratothoa steindachneri (Isopoda: Cymothoidae) new to British waters with a key to north-east Atlantic and Mediterranean Ceratothoa |journal=Journal of the Marine Biological Association of the United Kingdom |date=2000 |volume=80 |issue=6 |pages=1041–1052 |doi=10.1017/S0025315400003106|bibcode=2000JMBUK..80.1041H |s2cid=83606126 }}{{cite journal |last1=Horton |first1=Tammy |last2=Diamant |first2=Arik |last3=Galil |first3=Bella |title=Ceratothoa steindachneri (Isopoda, Cymothoidae): An unusual record from the Mediterranean |journal=Crustaceana |date=2004 |volume=77 |issue=9 |pages=1145–1148 |doi=10.1163/1568540042900231|bibcode=2004Crust..77.1145G }} first described by James Dwight Dana in 1852. Infection by Ceratothoa can cause anaemia, lesions, growth retardation, emaciation, and mortality in their fish hosts.

Species

Currently, 26 valid species in this genus are recognized:

{{Columns-list|colwidth=25em|1=

Ceratothoa africanae Hadfield, Bruce & Smit, 2014
Ceratothoa angulata (Richardson, 1910)
Ceratothoa arimae (Nunomura, 2001)
Ceratothoa banksii (Leach, 1818)
Ceratothoa barracuda Martin, Bruce & Nowak, 2015
Ceratothoa capri (Trilles, 1964)
Ceratothoa carinata (Bianconi, 1869)
Ceratothoa collaris Schiödte & Meinert, 1883
Ceratothoa famosa Hadfield, Bruce & Smit, 2014
Ceratothoa gilberti (Richardson, 1904)
Ceratothoa globulus Martin, Bruce & Nowak, 2015
Ceratothoa gobii Schiödte & Meinert, 1883
Ceratothoa guttata (Richardson, 1910)
Ceratothoa imbricata (Fabricius, 1775)
Ceratothoa italica Schiödte & Meinert, 1883
Ceratothoa marisrubri Trilles, Colorni & Golani, 1999
Ceratothoa oestroides (Risso, 1826)
Ceratothoa oxyrrhynchaena Koelbel, 1878
Ceratothoa parallela (Otto, 1828)
Ceratothoa retusa (Schioedte & Meinert, 1883)
Ceratothoa springbok Hadfield & Smit, 2020
Ceratothoa steindachneri Koelbel, 1879
Ceratothoa toyamaensis (Nunomura, 1993)
Ceratothoa trigonocephala (Leach, 1818)
Ceratothoa usacarangis (Avdeev, 1979)
Ceratothoa verrucosa (Schioedte & Meinert, 1883)

}}

C. carinata and C. oxyrrhynchaena were redescribed in 2013, and C. angulata, C. capri, C. carinata, C. collaris, C. gilberti, C. gobii, C. guttata, C. italica, C. oestroides, and C. verrucosa in 2016.

A number of taxa are species inquirendae:

Ceratothoa contracta (Miers, 1880)
Ceratothoa deplanata Bovallius, 1885
Ceratothoa gaudichaudii (H. Milne Edwards, 1840) (previously known as Ceratothoa rapax Heller, 1865)
Ceratothoa novaezelandiae Filhol, 1885
Ceratothoa transversa (Richardson, 1901)
Ceratothoa triglae Gourret, 1891

References

{{Reflist|30em|refs=

{{cite journal |last1=Brusca |first1=Richard C. |title=A monograph on the Isopoda Cymothoidae (Crustacea) of the eastern Pacific |journal=Zoological Journal of the Linnean Society |date=1981 |volume=73 |issue=2 |pages=117–199 |doi=10.1111/j.1096-3642.1981.tb01592.x}}

{{cite journal |last1=Hadfield |first1=Kerry |last2=Bruce |first2=Niel |last3=Smit |first3=Nico |title=Review of the fish parasitic genus Ceratothoa Dana, 1852 (Crustacea, Isopoda, Cymothoidae) from South Africa, including the description of two new species |journal=ZooKeys |date=2014 |issue=400 |pages=1–42 |doi=10.3897/zookeys.400.6878|pmid=24843254 |pmc=4023241 |s2cid=6067384 |doi-access=free |bibcode=2014ZooK..400....1H }}

{{cite journal |last1=Hadfield |first1=Kerry A. |last2=Bruce |first2=Niel L. |last3=Smit |first3=Nico J. |title=Redescription of poorly known species of Ceratothoa Dana, 1852 (Crustacea, Isopoda, Cymothoidae), based on original type material |journal=ZooKeys |date=2016 |issue=592 |pages=39–91 |doi=10.3897/zookeys.592.8098|pmid=27408544 |pmc=4926636 |doi-access=free |bibcode=2016ZooK..592...39H }}

{{cite journal |last1=Martin |first1=Melissa B. |last2=Bruce |first2=Niel L. |last3=Nowak |first3=Barbara F. |title=Redescription of Ceratothoa carinata (Bianconi, 1869) and Ceratothoa oxyrrhynchaena Koelbel, 1878 (Crustacea: Isopoda: Cymothoidae), buccal-attaching fish parasites new to Australia |journal=Zootaxa |date=2013 |volume=3683 |issue=4 |pages=395–410 |doi=10.11646/zootaxa.3683.4.4|pmid=25250460 }}

{{cite WoRMS |title=Ceratothoa Dana, 1852 |year=2021 |id=118407 |db=isopoda |access-date=2 September 2021}}

}}

Category:Cymothoida

Category:Isopod genera

Category:Parasitic crustaceans

Category:Taxa named by James Dwight Dana